Adjustable magnetic stirrer

Abstract

The utility model discloses an adjustable magnetic stirrer, which relates to the technical field of magnetic stirrers and comprises a magnetic stirrer body, an outer frame and a beaker body are placed at the upper end of the magnetic stirrer body, and a plurality of positioning pieces are mounted between the bottom of the outer side of the outer frame and the upper end face of the magnetic stirrer body. The outer frame body is fixed on the magnetic stirrer body through a positioning piece; the outer frame body is arranged on the outer side of the beaker body in a sleeving manner, a plurality of fastening pieces and driving pieces are mounted on the outer frame body, and the beaker body is fixed by the outer frame body through the matching of the fastening pieces and the driving pieces. According to the adjustable magnetic stirrer, the beaker bodies with different sizes are fixed on the outer frame body through the cooperation of the fastening piece and the driving piece, the adaptability is high, the beaker bodies in a high-temperature state can be conveniently taken down from the magnetic stirrer, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnetic stirrer technical field, concretely is a kind of adjustable magnetic stirrer. BACKGROUND

[0002] Magnetic stirrer is used for liquid mixing laboratory instrument, mainly for stirring or simultaneously heating and stirring low viscidity liquid or solid-liquid mixture.Its basic principle is using the principle that same sex of magnetic field repels each other, and opposite sex attracts each other, using magnetic field to promote the magnetic stirring placed in container and carries out circumferential operation, to reach the purpose of stirring liquid.Coordinate heating temperature control system, can be heated and controlled sample temperature according to specific experimental requirement, maintain the temperature condition required by experimental condition, guarantee that liquid mixing reaches experimental demand.

[0003] The magnetic stirrer with protective performance used at present is inconvenient to adaptively adjust according to the size of stirring cup, so that stirring cups of different sizes placed on the magnetic stirrer cannot be fully limited and protected, and when some experiments involving chemical reactions or auxiliary heating are carried out, the beaker will be in a high-temperature state due to reaction heat release or heating. When the high-temperature beaker needs to be removed after the experiment, the operator faces a great risk of scalding. The conventional method is to wait for the beaker to cool naturally, but this will consume a lot of time and seriously affect the experimental efficiency. If forceps or other tools are used to clamp, not only is the operation difficult, but also the beaker is easy to break due to improper operation, causing greater loss.

[0004] Therefore, we propose an adjustable magnetic stirrer to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0005] 1. The technical problem to be solved by the utility model:

[0006] The utility model aims to provide an adjustable magnetic stirrer to solve the problems in the above background art.

[0007] 2. Technical scheme:

[0008] To achieve the above object, the utility model provides the following technical scheme: an adjustable magnetic stirrer, comprising a magnetic stirrer body, an outer frame and a beaker body are placed at the upper end of the magnetic stirrer body, a plurality of positioning pieces are installed between the outer side bottom of the outer frame and the upper end surface of the magnetic stirrer body, and the outer frame is fixed on the magnetic stirrer body through the positioning pieces.

[0009] The outer frame is sleeved on the outer side of the beaker body, and a plurality of fasteners and driving pieces are installed on the outer frame, and the outer frame is fixed on the beaker body through the cooperation of the fasteners and driving pieces.

[0010] Further, the positioning member includes a foot fixed to the bottom of the outer wall of the outer frame, the foot is sleeved on the outer side of the fixing rod, the fixing rod is fixed to the upper end of the body of the magnetic stirrer, the upper end of the fixing rod is threadedly connected with a threaded cap, and the lower end surface of the threaded cap is attached to the upper end surface of the foot.

[0011] Through the above technical scheme, when the threaded cap is rotated and taken off, the outer frame can be taken off from the body of the magnetic stirrer.

[0012] Further, the outer frame is made of a heat insulation material.

[0013] Through the above technical scheme, the temperature of the outer frame can be reduced.

[0014] Further, the fastener includes a sliding plate horizontally and slidingly installed in the inner part of the outer frame, the sliding plate is fixed with a fastening plate on the side close to the center of the outer frame, a pressure spring is connected between the fastening plate and the outer frame, and a rubber pad is arranged on the side of the fastening plate close to the center of the outer frame.

[0015] Through the above technical scheme, the fastening plate can improve the clamping stability of the beaker body through the rubber pad.

[0016] Further, the lower end of the side of the sliding plate away from the center of the outer frame is designed in an inclined shape, and the fasteners are distributed at equal angles with respect to the center of the outer frame.

[0017] Through the above technical scheme, the stability of clamping the beaker body can be improved.

[0018] Further, the driving member includes a driving ring threadedly sleeved on the outer side of the outer frame, the upper end of the outer frame is rotationally installed with a pressing ring, the driving ring drives the pressing ring to move upwards, and the pressing ring moves upwards to press the sliding plate.

[0019] Through the above technical scheme, when the driving ring is rotated, the sliding plate can be pressed by driving the pressing ring to move up and down.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the technical scheme provided by the utility model can adjust the magnetic stirrer, fix beaker bodies of different sizes on the outer frame through the cooperation of the fastener and the driving member, has strong adaptability, and facilitates taking the beaker body in a high-temperature state from the magnetic stirrer, improves experimental efficiency, and the specific content is as follows:

[0022] The beaker body is placed in the inner part of the outer frame body, then the driving ring is rotated on the outer frame body, when the outer frame body rotates, the extrusion ring is driven to move up by the threaded connection between the outer frame body, in the process of moving up, the extrusion ring contacts the sliding plate, and in the process of continuously moving up, the extrusion ring extrudes the sliding plate, after the sliding plate is forced to move, the fastening plate is contacted with the outer wall of the beaker body, until the fastening plate is tightly pressed on the outer wall of the beaker body, so that the beaker body is prevented from shaking or toppling during stirring, and the protection of the beaker body is realized, and meanwhile, the beaker body of different sizes can be adaptively adjusted;

[0023] When the beaker body is difficult to directly take down due to the temperature rise of the beaker wall caused by chemical reaction or auxiliary heating, a plurality of threaded caps are sequentially rotated and taken off from the corresponding fixing rods, and then the outer frame body can be taken off, so that the beaker body fixed in the inner part of the outer frame body can be taken off from the magnetic stirrer body, convenient and portable, improving the experimental efficiency and reducing the operation time. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole side view three-dimensional structure schematic view of the utility model;

[0025] Figure 2 It is an outer frame body downward section structure schematic view of the utility model;

[0026] Figure 3 It is an outer frame body side view three-dimensional structure schematic view of the utility model;

[0027] Figure 4 It is an outer frame body side section three-dimensional structure schematic view of the utility model;

[0028] Figure 5 It is an outer frame body side view three-dimensional structure schematic view of the utility model; Figure 4 It is an enlarged structure schematic view of A in the utility model.

[0029] In the drawing: 1, magnetic stirrer body; 2, outer frame body; 3, beaker body; 4, positioning piece; 41, supporting leg; 42, fixing rod; 43, threaded cap; 5, fastening piece; 51, sliding plate; 52, fastening plate; 53, pressure spring; 6, driving piece; 61, driving ring; 62, extrusion ring. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the utility model, the technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0032] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0033] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment

[0034] Please refer to Figures 1-5 An adjustable magnetic force stirrer, including magnetic force stirrer body 1, the upper end of magnetic force stirrer body 1 is placed with outer frame body 2 and beaker body 3, a plurality of positioning parts 4 are installed between the outer side bottom of outer frame body 2 and the upper end surface of magnetic force stirrer body 1, and outer frame body 2 is fixed on magnetic force stirrer body 1 by positioning part 4;Positioning part 4 includes the leg 41 fixed on the bottom of the outer wall of outer frame body 2, the leg 41 is sleeved on the outer side of fixed rod 42, and the fixed rod 42 is fixed on the upper end of magnetic force stirrer body 1, and the upper end of fixed rod 42 is threadedly connected with screw cap 43, and the lower end surface of screw cap 43 is attached to the upper end surface of leg 41;Outer frame body 2 is provided with heat insulation material;

[0035] When the beaker body 3 is too hot to be directly removed due to the temperature rise of the beaker wall caused by chemical reaction or auxiliary heating, a plurality of threaded caps 43 can be sequentially rotated and removed from the corresponding fixed rods 42, and then the outer frame body 2 can be removed, so that the beaker body 3 fixed in the outer frame body 2 can be removed from the magnetic stirrer body 1, which is convenient and portable, greatly improves the experimental efficiency, and reduces the time and energy consumption of the operator;

[0036] The outer frame body 2 is sleeved outside the beaker body 3, and a plurality of fasteners 5 and driving members 6 are installed on the outer frame body 2. The outer frame body 2 fixes the beaker body 3 through the cooperation of the fasteners 5 and the driving members 6; the fastener 5 includes a sliding plate 51 horizontally slidingly installed inside the outer frame body 2, and a fastening plate 52 is fixed to one side of the sliding plate 51 close to the center of the outer frame body 2. A compression spring 53 is connected between the fastening plate 52 and the outer frame body 2, and a rubber pad is arranged on the side of the fastening plate 52 close to the center of the outer frame body 2. The lower end of the sliding plate 51 away from the center of the outer frame body 2 is designed in an inclined manner, and the plurality of fasteners 5 are equally angularly distributed about the center of the outer frame body 2; the driving member 6 includes a driving ring 61 threadedly sleeved outside the outer frame body 2, and an extrusion ring 62 is rotatably installed at the upper end of the outer frame body 2. The driving ring 61 drives the extrusion ring 62 to move upward, and the extrusion ring 62 extrudes the sliding plate 51 when moving upward;

[0037] The beaker body 3 is placed inside the outer frame body 2, and then the driving ring 61 is rotated on the outer frame body 2. When the outer frame body 2 rotates, the extrusion ring 62 is driven to move upward by the threaded connection between the outer frame body 2 and the extrusion ring 62. During the upward movement of the extrusion ring 62, the extrusion ring 62 contacts and extrudes the sliding plate 51. After the sliding plate 51 is forced to move, the fastening plate 52 is brought into contact with the outer wall of the beaker body 3, and the fastening plate 52 is tightly pressed against the outer wall of the beaker body 3, so that the beaker is not broken due to collision or shaking during stirring, ensuring the safety and stability of the experiment. At the same time, it can be adaptively adjusted according to beakers of different sizes.

[0038] Working principle: when using the adjustable magnetic stirrer, if Figures 1-5As shown, first, the beaker body 3 is placed inside the outer frame body 2, then the drive ring 61 is rotated to drive the extrusion ring 62 to move upwards and extrude the slide plate 51, after the slide plate 51 is forced to move, the fastening plate 52 is tightly pressed on the outer wall of the beaker body 3, avoiding the beaker body 3 from shaking or toppling during stirring, realizing the protection effect of the beaker body 3, and at the same time, the adaptive adjustment can be made according to beaker bodies 3 of different sizes, when the beaker body 3 becomes hot and difficult to be directly taken off due to the temperature rise of the beaker wall caused by chemical reaction or auxiliary heating, a plurality of threaded caps 43 can be sequentially rotated to be taken off from the corresponding fixed rods 42, then the outer frame body 2 can be taken off, and the beaker body 3 in a high temperature state can be taken off from the magnetic stirrer body 1, which is convenient and portable, greatly improves the experimental efficiency, and reduces the time and energy consumption of the operator.

[0039] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0040] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable magnetic stirrer, characterized by: Including magnetic stirrer body (1), the upper end of magnetic stirrer body (1) is placed with outer frame body (2) and beaker body (3), the outer side bottom of outer frame body (2) is installed with several positioning parts (4) between the upper end surface of magnetic stirrer body (1), and the outer frame body (2) is fixed on magnetic stirrer body (1) through positioning part (4); The outer frame body (2) is set on the outside of the beaker body (3), and a plurality of fasteners (5) and driving members (6) are installed on the outer frame body (2), and the outer frame body (2) is fixed to the beaker body (3) through the cooperation of the fasteners (5) and the driving members (6).

2. An adjustable magnetic stirrer as claimed in claim 1, wherein: The positioning part (4) includes a foot (41) fixed to the outer wall bottom of the outer frame body (2), the foot (41) is set on the outside of the fixed rod (42), the fixed rod (42) is fixed to the upper end of the magnetic stirrer body (1), and the upper end of the fixed rod (42) is threadedly connected with a threaded cap (43), and the lower end surface of the threaded cap (43) is attached to the upper end surface of the foot (41).

3. An adjustable magnetic stirrer as claimed in claim 1, wherein: The outer frame body (2) is made of heat insulation material.

4. The adjustable magnetic stirrer of claim 1, wherein: The fastener (5) includes a sliding plate (51) horizontally slidingly installed inside the outer frame body (2), the sliding plate (51) is fixed with a fastening plate (52) near the side of the center of the outer frame body (2), a compression spring (53) is connected between the fastening plate (52) and the outer frame body (2), and a rubber pad is arranged on the side of the center of the outer frame body (2) of the fastening plate (52).

5. An adjustable magnetic stirrer according to claim 4, characterized in that: The lower end of the sliding plate (51) away from the center of the outer frame body (2) is designed in an inclined manner, and the plurality of fasteners (5) are distributed at equal angles about the center of the outer frame body (2).

6. An adjustable magnetic stirrer as claimed in claim 1, wherein: The driving member (6) includes a driving ring (61) threadedly set on the outside of the outer frame body (2), an extrusion ring (62) is rotatably installed on the upper end of the outer frame body (2), the driving ring (61) drives the extrusion ring (62) to move upward, and the extrusion ring (62) extrudes the sliding plate (51).

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